| Parameter | External Spline (Shaft) | Internal Spline (Hub) | |-----------|------------------------|----------------------| | Reference diameter | 60.0 mm | 60.0 mm | | Tip diameter | 64.0 mm | 56.0 mm | | Root diameter | 55.0 mm | 65.0 mm | | Space width / Tooth thickness (max/min) | 3.1416 / 3.0916 mm | 3.1916 / 3.1416 mm |
⚠️ Note: Free PDFs often contain summarized tables. For certified production or legal compliance, purchase the full standard from DIN. din 5480 spline dimensions pdf
| Section | Description | |---------|-------------| | Basic formulas | Calculation of reference diameter, module, and profile shift | | Tooth geometry tables | Standardized combinations of module, teeth count, and diameters | | Tolerance classes | Fit classes for precise or general applications | | Inspection data | Over pin/ball measurements, span measurements over teeth | | Material allowances | Heat treatment and finishing allowances | | Parameter | External Spline (Shaft) | Internal
DIN 5480 is a German standard (Deutsches Institut für Normung) titled "Involute splines based on reference diameters". Unlike older standards (such as ANSI B92.1 or DIN 5462/5463), DIN 5480 uses a unique modular system based on a reference diameter rather than a fixed pitch or diametral pitch. ⚠️ Note: Free PDFs often contain summarized tables